{
 "meta": {
  "dataset": "Subscriber history — @IslamicBooksLibrary",
  "channel": "https://tgregister.com/channel/IslamicBooksLibrary",
  "retrieved_at": "2026-09-16T14:32:00.785Z",
  "licence": "CC BY 4.0 — attribute to tgregister.com",
  "n_readings": 13,
  "window": {
   "from": "2026-08-07T21:28:41.920Z",
   "to": "2026-09-12T23:58:10.026Z"
  },
  "columns": {
   "ts": "when this reading was taken, UTC",
   "subscribers": "the count read (or, for source 3, carried over) — see source below",
   "source": {
    "0": "sweep.py — t.me/<name> profile page",
    "1": "promote.py — Bot API getChat",
    "2": "resolve.py — MTProto",
    "3": "spromote.py — t.me/s/<name> post preview (figure carried over from an earlier profile read, not the preview’s own rounded header)",
    "4": "remeasure.py — t.me/<name> profile page, re-read on a schedule"
   }
  },
  "note": "Snapshots are written only when a reading changes: a gap in ts means \"no change observed between readings\", never \"not measured\" and never \"interpolated\". Readings from different sources are separate lineages that do not confirm one another — subtracting across them can attribute a change to a period nothing was actually read in. Full method: https://tgregister.com/methodology#measuring"
 },
 "rows": [
  {
   "ts": "2026-08-07T21:28:41.920Z",
   "subscribers": 8691,
   "source": 0
  },
  {
   "ts": "2026-08-08T01:11:55.358Z",
   "subscribers": 8690,
   "source": 4
  },
  {
   "ts": "2026-08-11T04:26:57.870Z",
   "subscribers": 8686,
   "source": 4
  },
  {
   "ts": "2026-08-14T16:07:12.799Z",
   "subscribers": 8679,
   "source": 4
  },
  {
   "ts": "2026-08-17T20:54:35.062Z",
   "subscribers": 8681,
   "source": 4
  },
  {
   "ts": "2026-08-21T04:58:20.235Z",
   "subscribers": 8678,
   "source": 4
  },
  {
   "ts": "2026-08-24T20:23:36.754Z",
   "subscribers": 8678,
   "source": 1
  },
  {
   "ts": "2026-08-24T23:15:51.635Z",
   "subscribers": 8685,
   "source": 4
  },
  {
   "ts": "2026-08-28T08:54:57.008Z",
   "subscribers": 8697,
   "source": 4
  },
  {
   "ts": "2026-08-31T09:37:39.883Z",
   "subscribers": 8710,
   "source": 4
  },
  {
   "ts": "2026-09-04T02:54:59.822Z",
   "subscribers": 8716,
   "source": 4
  },
  {
   "ts": "2026-09-09T01:38:32.940Z",
   "subscribers": 8730,
   "source": 4
  },
  {
   "ts": "2026-09-12T23:58:10.026Z",
   "subscribers": 8741,
   "source": 4
  }
 ]
}